The father of one of the girls accused of brutally stabbing a school friend to pay homage to an eerie horror story character, apparently encouraged his daughter's sick obsession by proudly posting a sketch the 12-year-old drew of the scary figure on Instagram.

Morgan Geyser, 12, drew the sinister stickman, inspired by an online ghost story about a ghoulish child killer called Slender Man, on a napkin and left it in the family home while she was out with her parents were out for dinner.

But far from being alarmed by the disturbing sketch, Morgan's father Matt seemed to find it amusing and posted it on his social network account.

Beneath the picture he wrote: 'Only Mogo (Morgan) draws Slenderman in crayon on a napkin when we are out to dinner'. He tagged Morgan's mother Angela in the post and four of his friends, 'liked it'MailOnline can reveal Matt Geyser is a death metal fan, who uses the Instagram name, Deadboy420.

Father and daughter: Matt Geyser interspersed his Instagram feed with wholesome family photos like this one with his daughter Morgan alongside Gothic-inspired drawings and cartoons with a dark twist

Telling: He posted this photo two months ago with the caption 'Only Mogo draws Slenderman on a napkin in crayon when we're out for dinner' showing that he was aware of his daughter's fascination with the virtual villain well before the attack

Matt Geyser is a fan of the 'stoner rock' band 'Deadboy and the Elephantmen'.

Email addresses linked to Matt Geyser’s name and address on
public records include the words ‘ILOVEEVIL’ or variously ‘ILOVEEVIL666’.

He recently posted a picture of a ticket for a Shadows Fall concert, a group with albums including Of One Blood and The War Within.

His wife Angie has also posted a number of pictures of skulls and one eerie image of a church and grave yard at night on her Instagram page.

Mr Geyser's apparent knowledge of his daughter's obsession with the Slender Man character comes as a worrying new development in the gruesome attack that left a 12-year-old fighting for her life.

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It is also concerning that he recognized the ghostly figure from a simple, stickman sketch, seemingly proving he had prior knowledge of the ghost stories his daughter had started to read.

Questions will also be asked as to why the school girl was allowed to search the internet for tales of the murderous character and apparently become so obsessed by it.

Morgan and her friend Anissa Weier, 12, allegedly lured their victim to a woodland area in their home town of Waukesha, Wisconsin and stabbed her 19 times before leaving her to die.

According to police Geyser and Weier had been plotting the crime for months.

Caring for her cat: Morgan Geyser, 12, is one of the two girls accused of trying to fatally stab their friend after luring her to a multi-day sleep over

Just a child: The crime was committed by Morgan and her friend who are both 12 years old, but the judge ruled that given the graphic nature of the attack, they will face charges as adults

Both suspects told police they tried
to kill their friend because of their obsession with Slender Man, a
character they discovered on a website called Creepypasta Wiki, which is
devoted to horror stories.

An administrator posted a message defending the site after it came under attack in connection with attack.

'I'm going to make myself loud and clear: ALL WORKS PRESENTED ON THIS
WIKI AND OTHER SITES (INCLUDING SLENDERMAN ... ) ARE FICTIONAL STORIES
AND CHARACTERS,' they posted Tuesday.

'This
wiki does not endorse or advocate for the killing, worship, and
otherwise replication of rituals of fictional works. There is a line of
between fiction and reality, and it is up to you to realize where the
line is. We are a literature site, not a crazy satanic cult.'

It followed a formal statement from the site claiming Slenderman stories are limited on the site and they do not believe the writings on the page encourage violence.

In
an official police report Weier said Slender Man is the ‘leader’ of
Creepypasta, and she needed to kill to show their loyalty.

PARENTS CRACKING DOWN ON THEIR CHILDREN'S INTERNET USAGE SINCE STABBING STEMMED FROM ONLINE GHOST STORY WEBSITE

Parents of the classmates of accused stabbers Morgan Geyser and Anissa Weier have been urged to more closely monitor their children's online behavior.

This comes after the two 12-year-olds attacked their friend in an alleged attempt to pay homage and serve as proxies for Slender Man, a fictitious violent creature that plays a role in many virtual ghost stories.

Tamra Davis, the mother of a 12-year-old girl who also attended Horning Middle School with the pair, told the Milwaukee Wisconsin Journal Sentinel how she is limiting her daughter's internet access in the wake of the Saturday morning attempted murder.

Other parents have instructed their children to become more vigilant reporting suspicious behavior that they notice in their peers.

The school has also called in two additional guidance counselors and a psychologist who have all been trained in grief management.

She
explained Geyser told her they needed to become ‘proxies’ of Slender
Man — a paranormal character with tentacle-like arms, who wears a black
suit and prays on children.

The only way to prove themselves to him was to slaughter their friend.

Weier
told police she was shocked by Geyser's evil suggestion, but excited to
prove skeptics wrong and show that Slender Man really did exist.

The
suspects were convinced ‘Slender,’ as Weier called him, lived in a
mansion in the Nicolet National Forest in northern Wisconsin. They
planned to kill the unnamed victim and walk to the mansion.

Geyser
was allowed to have two friends over each year for her birthday. Weier
and her decided to try to kill their friend during a sleepover on Friday
night.

After class at
Horning Middle School, Waukesha on Friday, Weier told police, she and
Geyser went to her house, so she could pack a backpack with clothes,
granola bars, water bottles and a picture of her mother, father and
siblings.

She said she didn't want to forget what her family looked like after leaving for Slender's mansion.

The
girls then went to Geyser's house. Matt Geyser gave them a lift to pick
up the victim and they all went to a skate park, before coming home
around 9:30 p.m. and going to sleep in Geyser's room.

Geyser and Weier had originally planned to kill their victim at 2am Saturday, according to the criminal complaint.

They
decided to duct tape their victim's mouth, stab her in the neck and
pull the covers up to make it look like she was sleeping, before running
to Slender Man's mansion.

But
they changed their plans on Friday night and decided to kill her in a
bathroom at a nearby park the next morning. Weier told police she knew
there was a drain in the floor for the blood to go down.

Gothic: Matt Geyser shared a Jason Cooper's deadboy and the Elephantmen flyer from October 12th 2002 (left) and his wife Angie posted this skulls drawing around Halloween (right)

Halloween: Morgan's mom Angie Geyser shared these two photos around Halloween, and the one at the right shows her 'little ninja turtle', her son

Morbid: This is the card that Matt Geyser gave his wife on her birthday last year

As
they left for the park the next morning, Geyser lifted up the left side
of her jacket; the knife was tucked in her waistband.

When asked by police what that meant, Weier said, ‘I thought, dear God, this was really happening.’

When
they got to the park bathroom, Geyser handed Weier the knife, and Weier
said Geyser tried to restrain the victim, but Geyser had a ‘nervous
breakdown’ and Weier had to calm her down.

'Only Mogo (Morgan) draws Slenderman in crayon on a napkin when we are out to dinner'

-Matt Geyser's caption on a photo he shared of his accused stabber daughter Morgan's drawing of a fictitious villain

Weier
then said they should go for a walk in the woods. They planned to play
hide and seek with the victim and then kill her when they were out of
sight, in the trees.

Weier and the victim went to hide, but when the school girl told her, 'friend' to lie facedown in the dirt, she refused.

At that point Weier pushed the victim and sat on her, thinking Geyser could stab her.

But the victim started to shout and scream that she couldn't breathe so much, Weier had to get off.Geyser gave Weier the knife, but Weier said she told Geyser she couldn't go through with it and gave it back.

Weier said once Geyser got the knife back, She said, ‘I'm not going to until you tell me to.’

Weier
said she started walking away from Geyser and then told her, ‘Go
ballistic, go crazy.’ Geyser said she would go ballistic, and Weier
said, ‘Now.’

Geyser then apparently tackled the victim and started frantically stabbing her.

Different interpretation: Angie Geyser shared this photo of her 'adorable Hauntlings' stuffed animals

Dark: Morgan is shown joing around with glow stick-like objects in the dark

Seemingly innocuous: The Calvin and Hobbes photo shared by Morgan's father (left) and the skull-adorned Bloody Mary (right) show that the family embraced darker themes in pop culture

Weier said when Geyser got off the victim, the injured girl was screaming, ‘I hate you. I trusted you.’

Weier
said the victim tried to walk toward the street but was stumbling. They
didn't want anyone to see her, so Weier grabbed her arm and pulled her
away from the street, causing her to fall over.

Weier said the victim was so badly injured she couldn't breathe, see or walk.

Weier then told the victim to lie down and be quiet — because that would mean she would lose blood more slowly.

She also told her they were going to get help; but they never planned on actually doing so.

Weier said they were hoping she would die, they would see Slender and finally prove he existed.

They left the victim lying on the ground in a pool of blood.

When police asked Weier if she knew what it meant to kill someone, Weier said, ‘I believe it's ending a life and I regret it.’

Weier also said, ‘The bad part of me wanted her to die, the good part of me wanted her to live.’

On
Saturday, a bicyclist found the victim, lying on the sidewalk, covered
in blood, with terrible injuries to her arms, legs and torso. She had
crawled out of the woods, where the suspects had left her. She was
rushed to a hospital, and on Monday night she was in stable condition,
but fighting for her life.

Goofy: Matt Geyser shared this photo of Morgan 'channeling Col. Sanders' while playing with bath bubbles

Family resemblance: Morgan Geyser (right) looks just like her mother Angie (left)

Creative: Morgan's father shared this photo showing her clay creations

Aftermath: Morgan, pictured earlier this month, now faces up to 65 years in jail

Haunting: The three girls reportedly knew each other from school

Outdoors: After initially considering killing their friend as she slept or in a bathroom to make for an easier cleanup, Morgan and her co-conspirator allegedly attacked the girl in the woods

A
Waukesha County sheriff's deputy found Geyser and Weier hours later,
walking near a main road. A knife with a five-inch blade was in Weier's
backpack.

In her police report, Geyser said she thought Weier stabbed the victim first.

‘Weier put the knife in my hand and then I continued to stab her,’ Geyser said.

She said she didn't know how many times the victim had been stabbed, adding that all she heard was screaming.

At
one point, when talking with police, Geyser said she was sorry. She
then told a detective, ‘It was weird that I didn't feel remorse.’

When
asked why she did it, she said they had to or ‘he would kill our
family.’ When asked who ‘he’ was, Geyser said she didn't know him. When
questioned as to what she was trying to do when she stabbed her friend,
Geyser said, ‘I may as well just say it: Kill her.’

Geyser
said she had never met Slender Man but that he watches her and can read
minds and teleport. Geyser said what she did was ‘probably wrong.’

On
Monday, the two girls were charged in Waukesha County Circuit Court as
adults with attempted first-degree intentional homicide. If convicted
they each face up to 65 years in prison.

Geyser's family members broke into tears several times during her appearance.

Just kids: The three girls- alleged killers Morgan Geyser (pictured with her lawyer), Anissa Weier, and the victim- were all 12 years old but Geyser and Weier are facing charges as adults

Charged as adults: Morgan Geyser (left) and
Anissa Weier (right), both 12, face 65 years in prison after admitting
to police that they stabbed a friend, hoping to kill her so they could
join the cult of the 'Slender Man'

Survivor: The 12-year-old girl was brutally stabbed 19 times by the two other girls who lured her into the woods. Pictured above being transported to the hospital where she was last reported in stable condition

‘The family is very horrified at what has happened,’ attorney Donna Kuchler said.

According to the LA Times, Waukesha police chief Russell P Jack said the case should act as a stark example of why parents should closely monitor their children's internet use.

"This should be a wake-up call for all parents," Russell P. Jack, Waukesha's police chief, said in a statement Monday. "Parents are strongly encouraged to restrict and monitor their children's Internet usage."

Waukesha
County District Attorney Brad Schimel stressed the girls were innocent
until proven guilty, but added he has never come across allegations like
this in his time as a prosecutor.

He
said: 'Most of the time in a crime like this, with such violence like
this, there's spur of the moment, there's the heat of passion'

‘It's
troubling when a person lashes out in anger,’ he said. ‘It's more
troubling when they lash out in cold blood. Isn't that the worst kind of
killer, the cold-blooded killer?’

Schimel,
a Republican running for state attorney general, said he had to bring
the case in adult court because of the severity of charges against the
girls. He said he expected the girls' attorneys to attempt to ‘reverse
waive’ them into juvenile court, but that he would resist.

If moved into juvenile court and convicted, the girls could be held at most until they were 25 years old, Schimel said.

‘It's a very shocking incident. There's no two ways about it,’ He added.

STATEMENT FROM CREEPYPASTA: 'SOMETHING ELSE HAS TO BE GOING ON THERE' FOR THE GIRLS TO JUMP FROM FANS TO ATTEMPTED MURDERERS

First
and most importantly, my condolences go out to all the families
involved. I cannot even imagine how painful and confusing and awful this
has to be for them. I don’t have children, but I can imagine how my
mother would feel if something like this happened to me, and it
absolutely breaks my heart to even consider her having to go through
that. The families of the young ladies who committed this crime also
have my heart going out to them – I know this can’t be easy for them as
well, and I’m sure they’ll have to deal with mistargeted backlash and
anger even while they try to get through such a trying time themselves.
So when I say that I extend my deepest sympathies and my prayers to those affected,
I hope that you understand that I mean it. I know that words can seem
hollow or come off as mere lip-service to the cynical, but it’s the
truth.

Of course, the
next thing I want to talk about is this site and the creepypasta
phenomenon at large as I’m sure that many people are here because they
want to know precisely what is being blamed for this event....

In this specific scenario, I’ll be honest: I have tried to keep Slenderman stories limited here.
I’m aware that he and Jeff the Killer have become absurdly popular
recently, with fans expanding upon their origins (in Slenderman’s case,
he was created on the SomethingAwful web forums many years ago in an
attempt to cooperatively create new folklore – an experiment that has
apparently been quite successful). Stories about Slenderman and his
proxies are not the central focus of this website. I am not intimately
familiar with all the various additions and expansions to his “legend”
that have cropped up all over the internet – to be frank, I did not find
him particularly interesting and as such I’m really not going to be
very helpful with explaining the details of his popularity and stories
to all the people who most certainly have questions....

But if I may be so bold, I don’t believe that it’s the fault of Slenderman or horror writing in general that this happened.
I remember reading scary stories and watching slasher movies when I was
a child and young teenager and while they certainly gave me nightmares,
they did not instill within me a desire to murder my friends. For someone to make the jump from reading a creepy story that is – at least on this website, once again, I can’t speak for all creepypasta websites – being
presented as 100% fiction into actually using it as a motive to plot
and murder another human being – something else has to be going on there.

We
live in a culture with a very unhealthy relationship with mental
illness. People with mental health issues are frequently dismissed (people
who deal with anxiety, depression, etc have almost certainly
experienced people telling them that their problems don’t exist and that
they should “bootstrap” and just “get over it”), shamed and bullied
(consider Miley Cyrus’ tweets where she mocked Sinead O’Conner for
acknowledging her own struggle with mental illness and asking for help), and often ignored or denied necessary treatment because people either choose to look the other way when they see symptoms
or their attempts to help are met with resistance because the sufferer
has internalized all the negative cultural messages about having and
admitting to mental illness.